摘要
针对某型箭载计算机所需加速度信号的实际需求,提出了两种在实时环境下生成信号的方法。重点研究了基于8254计数器和高速D/A方式实现加速度脉冲信号技术,分别采用PCI1751和PCI8238进行了软硬件实现,在RTX实时系统环境下进行了实时性设计,并基于两种方法实现了变加速度信号的生成。通过对比两种方式,分析其优缺点,选择了基于8254计数器的方式生成加速度模拟信号。
A computer-aided translation system is proposed in order to improve the performance of oracle bone inscriptions （OBI） information processing research and share the OBI expert knowledge. For OBI information pro-cessing researcher, translating OBI into modern Chinese is a very hard but important work. Translation memory li-brary stores the translated OBI-Modern Chinese sentence pairs. Based on the library, the computer-aided transla-tion system can reach 74.3% accuracy rate for general OBI sentences and 27.2% for special sentences. It meets the research requirements. Experimental results show that the system can improve work efficiency of information re-searchers and OBI experts.
出处
《科学技术与工程》
北大核心
2014年第2期191-195,共5页
Science Technology and Engineering
基金
国家自然科学基金(61203354)
装备科研项目(2011039)资助
关键词
箭载计算机
半实物仿真
实时信号生成
加速度脉冲
oracle bone inscriptions information processing
translation memory
bilingual corpus
computer-aided translation
